Shinwa 12" Aluminum Cutting Ruler with non-slip back handsaw but at least one of

but at least one of our customers has commented that the knife was not supplied with a very sharp edge and required honing before it was really sharp

and also high frequency hardening and file sharpening systems

69") x 40 mm wide x 8 mm deep straight edge is made from stainless steel that is carefully stress relieved before grinding and lapping to ensure that it is dimensionally stable over time and with changing ambient temperature

and has a No

Shinwa 12" Aluminum Cutting Ruler with non-slip back handsaw but at least one ofThis aluminum cutting rule from Shinwa has an edge that is designed to be used as both a low cost 12" ruler and also to function as an edge to use a knife against when cutting veneer, paper, leather or other thin materials. It is wider (35mm) than a typical ruler so that fingers can be kept away from the cutting and there is a non slip pad on the backside to help prevent movement when cutting or drawing a line. The straightness tolerance is better